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Both synthetic plastics and natural polymers consist of long-chain molecules made up of repeating units. Natural polymers, such as cellulose in plants and proteins in animals, are biopolymers produced by living organisms. Synthetic plastics, on the other hand, are human-made from petrochemicals or renewable biomass. Despite their different origins, they share several similarities. Firstly, both can form flexible or rigid structures depending on their molecular structure, which makes them adaptable for various applications. Secondly, they both exhibit durability; natural polymers can last for years under certain conditions, while synthetic plastics are known for their longevity. Lastly, both can be processed into different forms, such as fibers, films, or molded shapes. However, it's important to note that natural polymers are generally more sustainable and biodegradable compared to most synthetic plastics.
The term "Mn polymer" might not directly refer to a specific chemical entity but is likely related to polymer science terminology, where "Mn" stands for the number-average molecular weight of a polymer. In polymer chemistry, molecular weight is a critical parameter that influences the physical and chemical properties of polymers, such as strength, viscosity, and melting point. The average molecular weight of a polymer can be determined in different ways, leading to various averages: number-average molecular weight (Mn), weight-average molecular weight (Mw), and viscosity-average molecular weight (Mv), among others. Mn is calculated by dividing the total molecular weight of all polymer molecules by the total number of polymer molecules and is crucial for understanding the polymer’s behavior in solution and its overall performance in applications ranging from plastics manufacturing to biomedical devices.
The toy made from the compound polymer Zectron is the Super Ball. Zectron is a highly elastic polymer developed in the 1960s by chemist Norman Stingley. The Super Ball's unique feature is its exceptional bounciness, which is attributed to the properties of Zectron. This material allows the ball to bounce an extraordinarily high distance when dropped, much more so than balls made from ordinary rubber. Its introduction revolutionized the concept of bouncing balls, making it a popular toy among children for its remarkable bounce and durability. The Super Ball became a sensation, highlighting the potential of polymer science in creating innovative products.
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